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THPME011 |
Magnetic Field Design of the BAPS High Precision Quadrupole Magnet |
3531 |
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- Y.S. Zhu, F.S. Chen, W. Kang, X.J. Sun
IHEP, Beijing, People's Republic of China
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The Beijing Advanced Photon Source (BAPS) is a high performance light source planned to be constructed in China. High precision small aperture quadrupole magnets are required in the BAPS storage ring, which needs extremely high mechanical accuracy. Instead of the conventional manufacture method, the coils are comprised of several U-shaped solid copper sheets. So two-piece structure of the iron core can be adopted to reduce assembly error and improve the poles symmetry. Design considerations, 2D and 3D magnetic field calculations are presented in detail, and the needed mechanical precision is estimated according to the error field analysis.
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